Lantern



FIG. 1 is a left side, rear and top perspective view of a lantern showing my new design;

FIG. 2 is a right side, front and bottom perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a right side view thereof; and,

FIG. 8 is a left side view thereof.

The broken lines in the drawings illustrate portions of the lantern that form no part of the claimed design. 

CLAIM The ornamental design for a lantern, as shown and described. 